Global Patent Index - EP 3032624 B1

EP 3032624 B1 20180103 - CATALYST PARTICLES, AND ELECTROCATALYST, ELECTROLYTE MEMBRANE-ELECTRODE ASSEMBLY, AND FUEL CELL USING SUCH CATALYST PARTICLES

Title (en)

CATALYST PARTICLES, AND ELECTROCATALYST, ELECTROLYTE MEMBRANE-ELECTRODE ASSEMBLY, AND FUEL CELL USING SUCH CATALYST PARTICLES

Title (de)

KATALYSATORTEILCHEN UND ELEKTROKATALYSATOR, ELEKTROLYT-MEMBRAN-ELEKTRODEN-BAUGRUPPE UND BRENNSTOFFZELLE MIT DIESEN KATALYSATORPARTIKELN

Title (fr)

PARTICULES DE CATALYSEUR, ET ÉLECTROCATALYSEUR, ENSEMBLE MEMBRANE-ÉLECTRODE D'ÉLECTROLYTE, ET PILE À COMBUSTIBLE UTILISANT DE TELLES PARTICULES DE CATALYSEUR

Publication

EP 3032624 B1 20180103 (EN)

Application

EP 14834999 A 20140806

Priority

  • JP 2013166139 A 20130809
  • JP 2014119859 A 20140610
  • JP 2014122812 A 20140613
  • JP 2014122819 A 20140613
  • JP 2014070693 W 20140806

Abstract (en)

[origin: EP3032624A1] An object is to provide a catalyst particle that can exhibit high activity. The catalyst particle is an alloy particle formed of platinum atom and a non-platinum metal atom, wherein (i) the alloy particle has an L1 2 structure as an internal structure and has an extent of ordering of L1 2 structure in the range of 30 to 100%, (ii) the alloy particle has an LP ratio calculated by CO stripping method of 10% or more, and (iii) the alloy particle has a d N /d A ratio in the range of 0.4 to 1.0.

IPC 8 full level

H01M 4/92 (2006.01); C22C 5/04 (2006.01); C22F 1/14 (2006.01); H01M 8/1004 (2016.01); H01M 8/1018 (2016.01)

CPC (source: EP US)

C22C 5/04 (2013.01 - EP US); H01M 4/8882 (2013.01 - US); H01M 4/921 (2013.01 - EP US); H01M 4/926 (2013.01 - EP US); C22F 1/14 (2013.01 - EP US); H01M 8/1004 (2013.01 - EP US); H01M 2008/1095 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP)

Citation (examination)

None

Citation (opposition)

Opponent : Umicore AG & Co. KG

  • CN 103055893 A 20130424 - UNIV BEIJING CHEMICAL, et al
  • US 2012135137 A1 20120531 - ROH BUM WOOK [KR], et al
  • CN 102784641 A 20121121 - UNIV CHONGQING
  • WO 2011116169 A2 20110922 - UNIV ARIZONA [US], et al
  • US 2013034803 A1 20130207 - ADZIC RADOSLAV [US], et al
  • EP 2650956 A1 20131016 - TANAKA PRECIOUS METAL IND [JP]
  • WO 2010033829 A1 20100325 - UNIV NORTHEASTERN [US], et al
  • WO 2011160022 A1 20111222 - UNIV NORTHEASTERN [US], et al
  • MUKERJEE ET AL.: "Enhanced electrocatalysis of oxygen reduction on platinum alloys in proton exchange membrane fuel cells", J. ELECTROANAL. CHEM., vol. 357, 1993, pages 201 - 224, XP026528526
  • WANG ET AL.: "Structurally ordered intermetallic platinum-cobalt core-shell nanoparticles with enhanced activity and stability as oxygen reduction electrocatalysts", NATURE MATERIALS, vol. 12, 2013, pages 81 - 87, XP002758970
  • LAZARRO ET AL.: "Carbon Black: Production, Properties and Uses", 2011, article "Chapter 2 · Study and Application of Carbon Black Vulcan XC-72R in Polymeric Electrolyte Fuel Cells", pages: 2 - 28, XP055523137
  • ORION: "Brochure ''What is carbon black", ORION ENGINEERED CARBONS, June 2015 (2015-06-01), pages 1 - 48, XP055523147

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3032624 A1 20160615; EP 3032624 A4 20160727; EP 3032624 B1 20180103; CA 2920832 A1 20150212; CA 2920832 C 20180123; CN 105594035 A 20160518; CN 105594035 B 20180706; JP 6172281 B2 20170802; JP WO2015020079 A1 20170302; US 10014532 B2 20180703; US 2016197358 A1 20160707; US 2018277856 A1 20180927; WO 2015020079 A1 20150212

DOCDB simple family (application)

EP 14834999 A 20140806; CA 2920832 A 20140806; CN 201480054303 A 20140806; JP 2014070693 W 20140806; JP 2015530918 A 20140806; US 201414910872 A 20140806; US 201815992349 A 20180530